Liquid spreading apparatus



J. w. BUNCH 1,860,136

LIQUID SPREADI NG' APPARATUS Filed April 2, 1928 In vena? elco glfunck y @et ofmaterialfyz- Patented May 24, 1932 recoin wl Burien,

Appiialfioii-"mea April 2,1928; serial No."266,712`. j y

This invention relates to means for..y spreading liquids for various purposes, lrsuch as paintingor use with calcirnine, whitewash,

, asphaltum, andthe like, andanl object ofthe inventionisto provide a simpleapparatus that is as effective in spreading heavy as well as light owing liquids. Aj

'f To that"V end I provide liquid spreading Y apparatus that can be connected by an air line either 'directly to an air-compressor orgcornpressed air tank with means 'including valves connected to the top of the apparatus for discharging all of theairintoithe tank on the top surface ofthe liquid to drive it from the T15 tank unmixed` with air, withV the valves y arranged so that V,if desired the Compressed air can be divided so that part of it is.;directedV into. the liquid .ta-nk to drive out-the` liquid and the other part of the aii directed across the path of the discharged liquid toward Va nozzle to spread the'liquid, or if desired the Y valves canbe manipulated to drive clean airVV through'the spreader nozzle to first clean a y surface of dustfand the like', and then the -25 valves can beread'usted to 'drive ureV aint l P P or asphaltumthrough the nozzle to paint the surface'with a material that does not contain air bubbles. Y' v f 1 Another Yobject ofthe invention is to pro! ab viden aaliquid spreading apparatus having means for 4controlling and regulating theiowof compressed air into the apparatus, and also controlling. and regulating the flowrof air` to the'liquid tank as well as to the nozzle 35 so that 'proper'adj ustments can be easily and n quickly made for foperating 4with .liquids of differentdensity;V f' i `Inothenwords a greater pressure'of;` air f `in' both the tankf and nozzleis required'for o discharging and spreading heavy .liquids having-a tendency to `coagulate and solidify .thanV thinfliquids. Consequently I provide asiliifrl ple :means forincreasingor decreasingthe pressure according to the consistency ofthe 45 liquidbeingsprayed'orspread.

f Another object .is tov provide with anozzle adapted 'to :spread the liquid in a relatively even coat overjasurface up 'to-its marginal `edge without ezrcessivewaste i v that the tank can *beA easily filled with. heavy f i i end Vof the nozzle thatappears at the: right the apparatus y c1; 4, y f f n The apparatus `lincludes 5a tank4 15 that ,is i

onnosANenLns, cAniFonNIAg'AssreNeRoFoNnLrALr "relient: we", Y r cfnowMANror Los finenniiscnnrroema A, n Y' Features lof invention are sholwneinwthe construction, 'combination and arrangement ofthe parts whereby, a liquid spraying'` apq i u paratus is providedthat is easy tozoonstruct,

assemble and-operate, neat and pleasing-"in i appearance and'effective` and durable in use. Other objects, Vadvantages and: features, of Y i invention may appear `from?thejacc'onipanyfine drawings,the.sutjoined-demiieciesseri@l n The accompanying drawings lilll'istrate Atherton tion and the l'appended claim;

invention :l

AFigure-luis a planiviewiofaliquid i ing apparatus constructed in accordance withV this invention, 'showing the'compressedralr* pipe broken away and also showingafragmental "portion, ofthey hose' connection fbe-,s

tweenthe apparatus and sprayno'zz'le.r l1 1l` FiginQ is-anv ,enlargedfragm'entalgcentral Vvertical: seetionon line; -21-f2,"Fig.= l", vshowing a detailv of the vmeans for controlling the flow ofjcompressed air avndiliquid.; 'i 17, l

Fig. n3 is anl enlargedfragment throughv the @spreader nozzlefshowing'the disk constructed to spread the :liquid in'a fan'- shapedspray. 1 a, Figi4isacross'-section on line-, Fig. 3,

showing .theaconve'xedl side ofthe spray disk andthe formofthe orificetherethroughf-ory so` Fig. 5,;1s another cross :i

nozzle on line V545 showingthelarrangement of the discharge outlets'throughthe 'cross' or transversevwall at the 'end'of the nozzle head. Fig. 6i. is Nanother cross section on line 64-6,

iFig. `3", 'showing-theopposite side'io'f. the.

transverse wall ofthehead;V i

Fig? iS-aview of the diskaeiaeheajrromthe nozzle-'showing its concave side;v i Y FigA is an edge view. of thefdiskggf"` -dsk;-. ,i :.'Fiigf 10an enlarged central section 'ofthe handiend ofFig. 3. 1-

v. ig.9 is lal viewofthe convexedside of; 'i i' top inlet; l thatfisof .relatively largesizeso` l pipe 33 is a coupling 35.

or slow flowing liqiiids such as paints, asy i Vdischarge end of-thehead and has therephaltum and the like." Y

I The inlet 16 is normally closed by a crown plug 17 that is provided with a squared Wrench-hold 18 by which the plug can be attached to or detached from' the tank. Y

This plug is provided with a vent 19 that is normally closed by an air vcock 2O that can be opened to admit air'into the tank when necessary.

Internally threaded `bosses 21, 22 are op"-V positely arranged on the Vtop plateV 15 of the tank, and these bosses support the means' for driving the liquidA out of VVthe `tank and spreading it..

A'stan'dpiper24 having anV air valve 25Y therein has its lower'end secured in the boss 21 andthe upper end of the pipe is secured to ajfour-way pipe litting'26 having arms a, candclyp". f

A ldischarge pipe 27 is adjustable through the boss 22 and has its'inlet end arranged adjacent'the bottom plate 28`of the tank so that when in use substantially all of the liquid 29 can be discharged from theV tank without the-liquid being mixed with air unless vsuch mixture` is desired. A A'valve-3O 'is secured to the upper end of the pipe 27; andv also 'connected by a-,short pipe31 to a three-way pipe fitting 32 having armsmjg/ak Y lThe pipe 27 is adjustable so that therv pipe fitting 32 can be raised or lowered toV aline theexact centersof the arms y-z with the 'exact'centers of the arms a-'b of the fitting The arm 7) isc'onnected to the arm y a pipe'33 that-has a globe valve'34v that isnormally closed except when the apparatus isy `used for spraying; and alsointerposed inthe j y has its 'dislchargeend connected tothe varm aof thexfitting 26fby apipe' 38 in whicha globe valve -39 is interposed. f

The pipe 3,6

I A flexiblev air :supply pipe 36 can have its inlet end connected toH an'air compressor or storage-'tank'not Y shown, as theyarelgld adweuunderstood in,

.theart L i A safety valve40vfof^common typeis secured Vto the arm`V c ofthe fitting 26 so Vthat when .the pipe 27 becomes choked by slow llowing material such as asphaltum or paint and the pressure becomes excessive in the tank or pipe connection the compressed air can escape through the safety valve.

A pipe 41.7has one end secured to the arm a of the fitting 32, and the other end of this pipe-'is secured to the inlet end of a'flex'i'ble 'hose' 42..

f The outlet end ofthe hose 42 issecured tov a pipe'handle-.43 to which the nozzle 44 is se-y cured. vThe nozzle 44 includes a hollow 'head 45 .with a neck'46 secured to the pipev handle Spray..

through a center orifice 49 and oppositely arranged obliquely inclined passages 50, 51v

leading `from a chamber 52 in the head. The

Y passages 50, 51 enteran -annularchannel 53 in the wall 47.

A screw cap 54is detachably securedto the head 45 so as to hold a disk 55 in place which is` spaced away from theend 'wall 47 by a liberwasher'56to form a circulating chaxnber 57 between the wall and the disk so that liquid discharging through the inclined passages into the annular channel 53 will cause rapid circulation of the 'liquid in the cham- Vber that will aid greatly'in causing V'an leven fan-shaped spread of the liquidl as it discharges through an Orifice 58 in Vthe 'disk 55. The disk 55 is arranged withitsrconve'x side adjacent athe wall 45 and' v'with its concave AS5 side exposed through the opening 59gin the cap 54.

d The rim 60 around the orifice 58 is slightly extendedtowardthe'wall 47 and oppositely` arrangedare slotted passages 61, 62 that are cutinto the rim 60 that aid in causing theliquid passing through theorifice 58 and slotted passages 61, 62 to discharge ina fan-shaped spray so that surfaces of walls, streets and pavementscan be painted up totheir mar- ,f

ginaledgeswithout anexcessive Waste of material. l

VVhenl theposition of the disk 55 is reversed'a straight stream will'discharge from the nozzle. v

L In operation the tank y15 isvi'illed with .liq-y uid asdescribed. Thenv with valve 34 closed.

the valves 25,.- 30 are adjusted to a proper ...roo

open positionv for operationj. Then when def phaltum free'from'air bubbles the valve 39 is vopened. to admit compressedair Ato'the from air bubbles. The spread of theliquid as discharged from the nozzle iscof ywide extent softhat extensive surfaces can be quickv Vly and evenly painted'in a relatively short time. `The pipe 24 forming a branch to the tank 15v andthe kpipe 33 forming another Siring to spread liquids such as paint or as-v 1.95

branch to thenozzle 44 so that if desired lthe apparatuscan be used to Vspread liquid mixed lwith air. "Inctherfwords the'compressed air can be separated the fitting 26, part of theliquid', and the other part going to the nozzle to discharge the liquid in a fan-.shaped Thick or slow pressure `to discharge xthem from-the tank flowing liquids such paint, l varnish and asphaltum require `a'greater Vit going fto the tankto cause pressurel on iso tank without being saturated with air. In l. other words when the valves 25 and 30 are open,`and` the valve V34 is closed, the full pressure of the air will be on Vthe top surface of the liquid to force it out of the tank through the discharge pipe 27 unsaturatel'` with air so that when spread there are no u air bubbles in the'coating.

I claim as my invention: i,

In a liquid spreading apparatus the ,coin-v bination with a tank having an inlet arranged centrally in its upper end through which said tank can be filled with liquid, a yscrew plulg for normally'closing said inlet, an air coc for normally closing a vent through Said plug for manually releasing air or gas pressure invsaid tank, of means for discharging air either into the tank orpover the discharge end of a siphon pipe to 'discharge the liquid from said tank, said means including "a standpipe supported vertically on the upper end of said tank and arranged oppositely to a siphon pipe extending down through said tank to near the bottom thereof, valves interposed in the stand and siphon pipes, a four-way pipe tting on the upper end of said stand-pipe, a safety valve on the uppermost arm' of said four-way `pipe litting for automatically relieving excessive air or gas i pressure in said tank, an inlet pipe connected, n to one of the arms Aofsaid 'four-way pipe fitting, a control valve in said inlet pipe, a three-way pipe tting connected to the upper end of said siphon pipe, a Vdischarge pipe secured to one of the arms of said three-way.

fitting, a pipe connection between said pipe fittings, and a Vvalve interposed in said, pipe connection whereby said valves can be opened and closed to siphon the liquid from the tank so it will be saturated with air ory force the liquid from the tank unlniXed with air substantially as described. p

In witness whereof, I have hereuntoaixed my signature.

JACOB w, BUNGHQ 

